'use strict';

const cluster = require('cluster');

console.log('Hello from worker', process.pid, cluster.worker.id);

const caltulations = x => x * 2;

process.on('message', message => {

    console.log('Message to worker ', process.pid);
    console.log(message);

    const result = message.task.map(caltulations);
    process.send({result});

});
